<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<body>
<h2>Hello World!</h2>
<form action="/user/upload" method="post" enctype="multipart/form-data">
    <input type="file" id="file1" class="form-control" name="bin"/>
    <button type="submit" >上传数据</button>
</form>
<a href="/user/showUser?id=1">上传数据页</a>
<a href="/user/down">下载</a>
</body>
</html>
